infectiousness

infectious

[in-fek-shuhs]
adjective
1.
communicable by infection, as from one person to another or from one part of the body to another: infectious diseases.
2.
causing or communicating infection.
3.
tending to spread from one to another: infectious laughter.
4.
Law. capable of contaminating with illegality; exposing to seizure or forfeiture.
5.
Obsolete, diseased.

Origin:
1535–45; infect(ion) + -ious

infectiously, adverb
infectiousness, noun
noninfectious, adjective
noninfectiously, adverb
noninfectiousness, noun
uninfectious, adjective
uninfectiously, adverb
uninfectiousness, noun

contagious, infectious (see synonym study at contagious).


1. catching. See contagious.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
infectious (ɪnˈfɛkʃəs)
 
adj
1.  Compare contagious (of a disease) capable of being transmitted
2.  (of a disease) caused by microorganisms, such as bacteria, viruses, or protozoa
3.  causing or transmitting infection
4.  tending or apt to spread, as from one person to another: infectious mirth
5.  international law
 a.  tainting or capable of tainting with illegality
 b.  rendering liable to seizure or forfeiture
 
in'fectiously
 
adv
 
in'fectiousness
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

infectious in·fec·tious (ĭn-fěk'shəs)
adj.

  1. Capable of causing infection.

  2. Caused by or capable of being transmitted by infection.

  3. Caused by a pathogenic microorganism or agent.


in·fec'tious·ness n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
infectious   (ĭn-fěk'shəs)  Pronunciation Key 
Capable of causing infection. See Note at contagious.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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